Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
trinh quan » tinh quang, trinh luat, trinh han
khong cong » thong cong, khong cang, chong cong
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh luan
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu manh - hanh ((trinh cua) or (trinh quan)) khong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - hanh ((trinh cua) OR (trinh quan)) khong cong tan toan cau*.